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L. L. KORACH.

WINDOW CLEANING MECHANISM.

APPLICAYIGN FILED SEPT. 20. m1.

1,382,000. Patented June 21, 1921.

will appear from LOUIS L. KQBAGH, OF CHICAGO, ILIJLN'OIS.

WINDDW CLEANING MECHANISM.

Specification of Letters Patent.

Patented J one 21, 1921.

Application filed September 20,1917. Serial No. 182,309.

To all whom it may concern:

Be it known that I, Lotus L. KORAOH, a citizen of the United States. residin in hicago, in the county of ook and btate oflllinois, have invented certain new and useful Improvements in VVindowlleaning Mechanisms, of which the following is a specification.

This invention relates to that class of window washers which are adapted to be operated from the inside of a window, for washing or drying or cleaning the outer side of the window panes.

The principal object of the invention is to provide a simple, economical and efficient window washer.

A further object of the invention is to provide a window washer which adapted. to be mounted with facility and operated from the inside of the window in washing and drying or cleaning the outer sides of the window panes of windows of varis'vns dimensions.

Other and further objects of the invention an examination of the drawings, and from the description and claims.

In the accom anying drawings, which are made a part oft-his specification, Figure 1 is a view in side elevation of a window washer constructed in accordance with my invention and improvements and shows the same as it would appear in operation, and mounted in position between the lower edge of a window sash and a window sill, and with the upper outer extremity or" the win.- clow cleaning arm or toolsupporiing memher and lever mechanism shown in ion id position in full lines, and in raised n ition in broken lines;

Fig. 2, a plan view of the mechanism shown in Fig. 1 with a portion oi the toolsupporting mechanism at. the upper eXtNTIk ity of the lever mechanism omitted;

ig. 3, an enlarged detail plan view of the lever-operating gear mechanism, taken on line 33 of. Fig. I, looking downward Fig. 4, a detail vicw in side elevation of the main supporting member, with the adjuistable lover-sopporting member mounted thereon, with parts broken away and other parts omitted; and

Fig. 5, an enlarged View in vertical tion, taken o n line 5--5 of Fig. 1, looking in the direction indicated by the arrows, and

showing the main tool-holding member at the upper extremity of the levers in elevation, andthe tool-supporting spindle in sectlon.

In constructing a window-cleaning mechanism in accordance with my invention and improvements, provide a main supporting member or base a, which is, by preference, of angular construction, and provided with an upper longitudinal flange 5 and a bottom longitudinal flange 0, between which is slide ably mounted an inwardly and outwardly longitudinally adjustable lever-supporting bracket or bar a", which is pivotally connect ed with and adapted to support the lever mechanism hereinafter described; and is also adapted to support the lever-operating mechanism, or rack, gear and geanoperating mechanism hereinafter more particularly described. The main supporting member a has depending arm portions (1 and f at or near its opposite extremities, and laterally pro ecting arms 5 which may be on the depending; arm or bracket member 6, are adapted to extend over the upper surface of a window sill It, said arms 1 being, by preference provided with. anti-friction rollers z rotatively supported, and adapted to roll on the window sill as the device is moved tran.versely of the window to any desired position, in the operation of cleaning a win- An adjustable supporting arm j is mountedat or near the outer eiitren'iitv of the main supporting member a. and is adjustahlv secured in position by meansof a bolt having a suitallie nut thereon. the bolt ll being mmmted in a oerioration in the part f and adapted to extend thr ugh an elongated slot m in the part i. in antifriction roller 92. may he ri'n'ativelv mounted at the lower extremity of the part as shown in, Figs. 1 and l. and is adapted to hold the main supporting member a in any position into which the latter is adapted to be moved or ad usted lengthwise of the sill or transversely of the window. The main supporting member a: is provided with elongated slots r, through which extend adjusb mg'screws s. which are in threaded engagement with the longitlidlnally adjustable supporting, member ti. already desrrihed. Mean is thus provided for taflfilllllfl the longitudinally adjustable ineinher llin fixed relation to the main supporting member a. in different adjusted positions. The main oupporting nieniher u is aiso. lrr preferenrv. provided with a runner-ting or upwardly projet-tin; hook I whirh is adapted to slidahly engage .1 suitahle horizontal supporting-rod u. The rod in is adaptvd to hr secured to a stationary support su clr for instant-e. as tln: iower rdgr ot a window sash m hy means of suitable (lamps w. lixed to Said rod at or near the opposite extremities; thereof, and provided with a (damping screw llltlllllt il in thrraded engagement with a jaw of earh rlainp w. and adaptrd to engage one side of tho stationary support or sash i, each clamping nieinher 1 having an op posite jaw adapted to engage the opposite side oi the Sit-d1 or support n. It will be readily understood that the clamps I! are adapted to he r-lainped with equal farilit to oithc-r the inner lower sash I or to the bottom of the outer upper sash :2 as desired 'hrn the devire is; to he si-rnred to the upper sash the latter is ot' ronrse lowered. and the inner sash i raised.

The inwardi r and outwardly longitndi nail ad instahir sliding: inemhrr (I, alreat y desrrihed. is provided with hearings or sorkets 3 4, at or near its opposite oxtrmnities. in whirh hearings i8 rotatively mounted an operating shaft 5. which is provided at one end with a rrank 6 having a handle 7 \Vllit'll is loratrd on the inside of the window when the devirp is in operative position The opposite end or outer extremity of the longitudinally adjustable sliding menilier J is provided with a hrarket Hi the upper rxtremity f) of whit-h has a sorlcet or hearing portion ML and the lower extremity l] of which has a lower sorket or hearing portion 12. and a vortiral rack 13 is Siidahly mount rd in said sorkets or hearing portions in and 152. This ltlt'k has a series of rack teeth it on one side thereof, and is. by preterenre. provided with side Stl'lpf: 15 on opposite sides of the rark tooth and adapted to form shields or guides. (See Fig. A htuh shaft 16* is rotativoly mounted in a snitahle hearing 17 in an arm portion 15 of the adjnstahie memlier (I, already desrrihed, and a Spur gear 19 is mounted in fixed relation to said shaft, and in toothed engagement with the teeth 14 of the rark 13. A beveled gear 20 is fixed to the opposite oxtreniity of said stub shaft and is in toothed engagement with a similar beveled gear 21 fixed to the outer extremity of the rotative main driving shaft 5. already described. It is ohvions that the rotation of the shaft by means of the (rank 6. in one dirertioii wilt ranar the toothed rark to he more-d upward, and that the rotati n of said shaft in an oppositr d3 rertion will cause said rarl; to mow dowi't ward. A series of o t-rating lLYNH ls sopported by tho inwardly and oidnordly ad jusiahle har or nieniher fl. Ilii'l'ltih' doo-rihod, and opi-ratirelv ('t'illiltiitti at lhr lower rxtrenlity of the h-wr Hl'dliitilldti oitli {hr toothed rat-k 1 5. and at tho nppi-r r itrrniitr oi the lerrr lllOt'liillllr-illi with an lippi-r tortirally moralilr tool+opportmy; HH'IHIHI it Thu tlli)i-5ll1)l)t!l'liil;f inrnila-r :1! is. t prrl rrenrr. so ronatriv'trd no to ronipriw a g ill of horizontal arms 'J-l and a pair of itllli'dl arms 2% in rigid rrlation to tho 2 row :3. all of said arms he in; Httlill'ti in rigid l'vlnli ri to \ilt'il othrr la) Illt'dlib. of a 'tllitill ldoi-ii or tiller Q25 and a prrl'oratrd rnd mi-nihrr oi hlork 2U la-twri-n and at or noar tio' i-x trvniity of tho horizontal arms 22 i 'l'hi; up pvr extremitirs of tho \rrtiral arms :l are aernrrd in lixrd rigid aviation to t'ilt'll othr': by means; of pin 2?. and said wrtiral :|r1narr rarh provided with an vl ng'aird rorti ral slot 1*. 'l'ln ho: izoidal arm} 13 5. and also the \rrtiral arms 2t. arr Hifiittii apart and a tnol-$llld1ortillg @piodlo 21* i ll in 'lV oionn rd in position to r\ti=1ol throw, tin pi-rtoratrd vnd nirnila-r :zo. rind lrrin' on tho horizontai arim i i. and ll-i proridrd with a (Ullllif'liiSililt spI in; lit! t'lltll'vlliill -iid apin die and in rng a irnirnt lth a ll'illlt tl'lft pin iii in the :piodlr, Tho -spring 21o ii: hos adapted to prrws' tho tillDl-lll1ll0l'till}f ipindh- 21) in the dirrrtion ol' the window panei). and the tfinl fltill ilWilli: spindle is proridi-d with a snitahlr t olrngaging end portion 32L whirh h}: prri'rrriirr. taprrrd and adapts-d to engage and svi-nroiy hold a similarl taprrod sot-kid portion or shank I); of a tool 33. The tool thus rrniorahlr nionntrd on thispindle 29 may ho in the form of a sponge or otht'r siniiiar rlonirnt proridrd with a shank or enpporling lll lll tl' adapted to he rrmorahlr aernrvd to tho spindle 35k or in tho form of a opiiigrr having a similar snitahhshank :idapti-d to he rrnawahly N rorod to the spindlo 121'.

The HILHHS l'or minim-ting: tho toothrd rat-l; 1:5 with thrtool-holding itltl'lll tl 3:. rolnprises a sot or St'l'lt of pirotally vow nertrd operating lrrrrs and linl; lll 'i nisni. as already Soggrstvd. main supporting lrri-r ll' t'ornn-d or ref eronrrof a pair of parallrl lever Illttllllti or liars. is pirotally 'o movt -d at its lowi-r end with the lower i-xtreniit ol' tho hrarltrt arm 5' of the har (I. lay moans of a pivot 3?. Anotln'r leror iornird of a pair of lvrt'r inrmhrrs or harp ol' anitaldr li-nntln dosig natod h t the rrt'errnrr innni-ral W. i; pii otally oonnrrted at its low-r or ontrr rod with and supported hr the oidrr rod of tho lever 34L thr oppositv or npprr rnii d tlw leri-r 3h living piiotall i'minmtw with ill! tool-supporting; llltllliiii' '31 illfiitiir transverse pivot lift A --oppl -n|rntarr no ilHE , preference of a pair of ,lever members or (ill bars arranged side by side, is pivotally connected at its lower end with the toothed rack 18, by means of a transverse pivot 41,

located directly above and in parallel relation to the pivot 37; and a lever -12, formed of a pair of parallel. lever members or bars, is pivotally connected at its'lower or outer end with the upper or outer end of the lever 40, by means of a transverse ivot 43 which is directly over and in para lel relation to the similar pivot 44 which pivotally connects the adjacent ends of the lovers 36 and 38 already described. The upper end of the uppermost pair of lever members or bars 42 are connected together and in vertically movable relation to the tool-holding member 22 by means of a transverse connecting and guiding pin 45 which is secured at its opposite ends to said bars, respectively, and extends through and is in sliding engagement with the walls of the elongated vertical slots 28 in the vertical arms 24, of the tool-holding member 22. A'pair of links 46 which are of equal length and parallel. are pivotall y connected at their lower ends with the tool holder 22 and. the adjacent end of the lever 39. by suitable means. such, for instance. as the pivot 39, already described; and the upper ends of the said links are pivotally connected with the lever 42 at a point a short distance from the ends of the latter, by means of a transverse pivot 46'. A simi lar pair of links a7 are mounted in arallel relation to each other and pivotal y connected at their upper ends with the rack 13 and the adjacent ends of the lovers 40 by means of the pin 41. already rtlescribed; and

' the opposite or lower ends of the links 47 are connected with the levers 36 by means of a transverse pivot if. located in the same vertical plane with theipivot 46', already described. The levers 38 and 40 are pivotally connected by means of a transverse pivot49 which is parallel with relation to the pivots 43 and 44, and located at the same distance from each of said last named pivots as are the pivots 48 and ll from each other. The levers 36 and 40 are )arallel; and the levers 38 and 4 .3 are parallel. All of said levers and links are spaced apart as indicated in Figs. 2 and 3. and are all so connected that the upprr extremities oi the lovers 38 and 42 more in the same vertical plane in which the lower pivoted ends or axes of the levers 36 and all are located. It follows as a matter of course, that the parts pivots 45, 39 and 41 all move upward and downward in the same vertical plane. The levers 38 and 42 are at all times in'parallel relation; and the lovers :3 and 4-2 are. likewise. always in parallel relation to each other in Whatever position the working parts of the devi e may be while in operation.

The-levers above described extend longitudinallyin vertical planes which are at right angles or rpendicular with respect to the vertical p ane in which the window panes to be operated upon are located. The

esired strength and ri idity is thus afforded, and the Window-c caning tool is held yieldingly and with the desired degree of firmness, in engagement with the outer sur face of the window pane to be operated upon, and is moved with facility into position to engage and operate in an etficient manner upon any desired portion of the outer surface of either the upper or lower window pane, as desired. The bar a! is adapted to be adjusted inward or outward with respect to the window and with respect to the main supporting member a, so as to be in the most advantageous position when the window pane of the lower sash is to be cleaned or operated upon. as well as when the window pane of the upper sash is to be operated upon or cleaned. The compressible spring 30 serves to yieldingiy press the tool against the window pane with the desired degree of firmness, with the parts in any position into which they are adapted to be moved in the operation of the device. In some instances the rod to may be dispensed with. and the device successfully operated without being connected with said rod, or with the sash by means of said rod or similar guiding member. \Vhen the rod 11 is not in use the sill serves to uidc the device while it is being moved to iflerent position transversely of the Window.

The adjustable depending arm j is adapted to be adjusted to different positions to correspond with the outer surfaces of window frames or sills of various sizes and 10a plane at right angles of perpendicular with 120 respect to the vertical plane in which the window pane to be operated upon is located.

In order to reduce the friction caused by the movement of the rack 13 to a minimum, anti-friction rollers 10' are provided, between which the rack is adapted to operate. it is obvious that the device constructed as above described is capable of' being operated with the levers disposed in any deoperated upon, a trml-holtlin; member mounted upon and muvnbie with the free ends ()f Ullk! pair of said lovers, :1 reciproeating: tuuthull rat-k mounted upon said m1- justalile levvr-suppm-ting member and 0])- eratively uninvited with said levers shaft and gear mevimnism in opvl'ative engagement with said i'zu'k, and a main supporting the plane m. a vertical window pane to be mvmlmr in supporting engngunwnt with 10 sand tUlJlIStillIlt' lvvor-snppm-tl11g mmnlwr.

Signed at Chicago, Illinois, Svptomber 17,

LOUIS L. K( )RACH.

Witnesses W mum-:1) HARDING, JAs. FINN. 

